Insulating compound for printing-presses



UNITED STATES.

PATENT OFFICE.

HENRY HAYNES, OF PHILADELPHIA, PENNSYLVANIA.

INSULATING COMPOUND FOR PRlNTING-PRESSES.

SPECIFICATION forming part of Letters Patent No. 508,107, dated November7, 1893.

Application filed April 29, 1893. Serial No. 472,413. (No specimens.)

To an whom it may concern.-

Be it known that I, HENRY HAYNES, a subject of the Queen of GreatBritain, residing in the city and county of Philadelphia, State ofPennsylvania, have invented a new and usefullmprovernent in InsulatingCompounds for Printing-Presses, which improvement is fully set forth inthe following specification.

My invention consists of a compound whereby the tympan sheet or otherproper part of a printing press may be insulated, and the paper to beprinted is prevented from being electrically charged, thus producingsuperior results, as will be hereinafter set forth.

In carrying out my invention, I take machine, petroleum or equivalentoil one gallon; glycerine, one quart; paraffine wax, three quarters ofan ounce; castor oil, two ounces. The proportions may however be variedaccording to requirements. The oils and wax are heated until the wax isthoroughly dissolved, and the mass is stirred, and when cold theglycerine is added, and all well mixed together.

To use the compound it is well shaken and applied to the tympan sheet ofthe press, it being spread evenly over said sheet, a little larger thanthe form. Some waste sheets are the other side.

now passed through the press so as to remove the superfluous compoundwhich has not been absorbed by the tympan sheet.

In cold Weather there is more or less electricityin the paper to beprinted, which causes trouble, such as the paper sticking to the fly, orbeing thrown on the floor, ofisetting on the back of the paper, anddiificulty of separation. By using my composition the trouble will beovercome, as the tympan sheet and paper will be insulated, and the paperwill be delivered straight and even, and what has been printed on oneside may be printed on As the paper runs so Well through the press, thelatter may be operated at a higher rate of speed, and thus produce morework.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is

An insulating compound for a printing press composed of machine oil,wax, glyqerine, and castor oil, substantially as described.

HENRY HAYNES.

